.product_list{
    /*height: 2.7rem;*/
    overflow: hidden;
}
.product_item{
    float:left;
    width: 30%;
    border: 1px solid #000;
    margin-left: 3%;
    margin-top:3%;
    text-align: center;
}
.product_item .imgs{
    width: 80%;
    height: 1.4rem;
}
.product_item p{
    margin: 0;
}
.nav_Item{
    border: 1px solid #ccc;
    background-color:#EFEFEF;
    height: .6rem;
    line-height: .6rem;
}